| Active principles | Rating | Bibliogr. | Expand | |
|---|---|---|---|---|
| 1 | Radioisotopes | 100 | + | |
| 2 | Iodine Isotopes | 16 | + | |
| 3 | Carbon Isotopes | 11 | + | |
| 4 | Phosphorus Isotopes | 9 | + | |
| 5 | Sulfur Isotopes | 3 | + | |
| 6 | Yttrium Isotopes | 2 | + | |
| 7 | Cobalt Isotopes | 2 | + | |
| 8 | Sodium Isotopes | 1 | + | |
| 9 | Oxygen Isotopes | 1 | + | |
| 10 | Strontium Isotopes | 1 | + | |
| 11 | Xenon Isotopes | 1 | + | |
| 12 | Gold Isotopes | 1 | + | |
| 13 | Deuterium | 1 | + | |
| 14 | Calcium Isotopes | 1 | + |